Line-lock for type-writers.



No. 781,190. & PATENTBD JAN.]31 1905;

I J. D. DAUGHERTY.

LINE LOOKVFOR TYPE WRITERS.

' APPLICATION F ILED JULY 10,1903. RENEWED OCT. 26. 1904.

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PATENTED JAN. 31, 1905.

J 1). DAUGHBRTY'.

LINE LOOK FOR TYPE WRITERS. APPLICATION F ILIZD JULY 10. 1903. RENEWED OUT. 26, 1904.

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' UNITED STATES Patented J anuary 31, 1905.

PATENT. I OFFICE.

LINE-LOCK FOR TYPE-WRITERS."

SPECIFICATION forming part of Letters Patent No. 781,190, dated January 31, 19 05.

Application filed-Tilly 10, 1903. Renewed October 26,1904. Serial No. 230,108.

1'0 all-whom it may concern..-

' Be it known that I, J AMES D. DAUGHERTY,

I a citizenof the'United States, residing atKittanning, in the county of Armstrong and State of Pennsylvania, have-invented .new and useful Improvementsin Line-Locks for Type-.

Writers, of which cation. y

Myinvention relates to improvements in line-locks for typewriters, and has for its object certain improvements, which will be the following is a'spe'cififully set forth hereinafter, and particularly pointed out in the'drawings.

1n the accompanying drawings, Figure 1. is a top plan View of a type-writerof the Underwood type, showing my. invention applied thereto. Fig.2 is a diagrammaticview of my improvement, showing it in position and the relative location of the parts as arranged in the type-writer. Fig. 3 is a perspective view of the paper-guides which comprise a part of my improvement and the cooperating parts per-guides.

adjacent thereto. of a portion of the paper guidesupporting rod and the embracing end of one of the 'pa- Fig. 5 is a detached perspective view, inverted, of the operating connection or lever between the paper-guides and the lock- 'ing and bell-ringing mechanism. Fig.'6 is a perspective viewof an intermediate part which cooperates with the lever shown in Fig. 5. Fig. 7 is'a detached perspective View showing the construction of the mechanism which directly cooperates with the bell-clapper.

the frame of the. typewriter, which is here shown of the type known in the art as the i fronts-strike -or visible-writing machine,

. and theparticular machine of -this type here shown is the well-known Underwood,,though my invention is adapted to be used n connection with other forms of front-strike or visi-' ble-writing machines. e

2 is'the-carriage frame, and 3 the platenframe, which is supported by the carriageframe; 1n the form of machine here shown the platen -frame has'a vertical movement in respect to the carriage-frame, although my Fig. 4 is an inverted view moves-horizontally, and certain features of my invention are adapted to be used in connection with any form of writi-ngmachine,

whether of the front strike, the top strike, or

the under strike, as will more fully appear hereinafter. Some features of my invention,

however, are particularly designed for use in connection with a front strike machine, and for this reason only I have selected that type of machine in connection with which to herein illustrate and describe my invention.

In applying my invention to a front-strike machine I provide a paper-guide-sufrporting rod 4, which is supported by the platen-frame 3 and at a point which is located between the platen 5 and the front rail 6 of the carriage- 'is in its lowest position is preferably in a horizontal plane belowthe upper face of the said rail 6. The rod is supported by the platenframe or an extension thereof, and, as' here shown, this extension consists of the arms 7.

Located on the rod 4 are the adjustable.

paper-guides 8. which have their outer ends 9 provided-with suitable sockets or embracing members'i), by means of which they may be- 30 clamped to the rod 4 at the desired adjustment. Any suitable form of locking means may be provided; but, as here shown, it consistsin providing the under side of the bar 4 with serrations 10 and having the under member 11 of the socket ,9 p-rovided with corresponding serrations and a clamping-screw 12, by means of which the serrated portion 11 can be brought into and-out of engagement with the serrations 10, as will be readily understood. For the purpose of enabling the paper-guides to be adjusted to any given point on the scale 14 [provide the paper-guides with outwardly- .projecting pointers 15, which enable the operator to place the paper-guidesat any desired point in respect to the writing-lineof the machine. it will be observed that the paperguides have'elongated arms extending from the rod 4 to the spring orroller portions 16, which engage the platen.

By arranging the paper-guides and their support as herein shown and described I am enabled to provide a fron'tstrike machine with adjustable paperguides and in such a manner as not to interfere in even the slightest degree with the visible writing of the mabetween the platen and the point at which the paper is placed in the machine by the operator. Furthermore, the arrangement and location of the parts are such that the paper being written upon does not and cannot in any manner limit or interfere with the adjustment of the paper-guides to any point throughout the length of the platen and will even permit (should occasionarise for-such adjustment) both guides to be moved at either end of the platen for the purpose of writing a short line .or lines at either end of the platen or to usea narrow strip of paper located at any desired point on the platen.

In addition to providing a paper-guide for use in connection with front-strike machines having the advantages hereinbefore related I so arrange the paper-guides and a keylever or line-locking mechanism that the adjustable paper-guides perform the additional function of locking the mechanism of the type-writer, and thereby determining the length of the line and also preventing printing over or piling characters on the papers. The locking of the mechanism as a mechanical sequence also looks the carriage. I also arrange the line-locking mechanism, the bel ringing mechanism, and the paper-guides so that by the movement of the paper-guides three functions are accomplishednamely, the adjustment'of the guides at the desired point, the locking of the mechanism to determine the length of the line and prevent overprinting or piling, and, thirdly, the ringing of the bell in advance of reaching the end of the line. This threefold function is very advantageous in type-writers in that the operator has only to adjust the paper guide or guides to the desired point without any thought of either the line-locking or bell-ringing mechanisms, since the adjustment of the paper-guides to the desired point, as "aforestated, effects a corresponding operation of said mechanisms and causes them to perform their functions at the adjusted point. These features of my invention. whereby the adjustment of the paper-guides will control the operations of the line-locking and bed-ringing mechanisms may be applied to any form of writing-machine, though for convenience I have shown it in connection witha front-strike machine. In applying it to a machine of this type I provide a vibrating or movable-member 17, which, as here shown, is located below the scale 14 and has one end pivotally supported by a lug 18, which depends from the under side of the scale, and this lug is located about at the center of the machine. The member 17, as here shown, is approximately U-shaped in plan view, and its end opposite from the lug 18 is pivotally supported upon a lug or stud 19, carried by the frame of the machine. Extending downward from the vibrating member 17 and made fast thereto is an arm 20, and this arm 20 has its lower end adapted to operate the key-locking and bellringing mechanism.

As here shown, the key-locking mechanism consists of a rocking bar 21, supported by arms 22, and this bar 21 is adapted to pass under hooks 23, which are carried by the keylevers 24. An arm 25 is connected with the bar 21 and has a horizontal recess 26, in which a pin 27, carried by the arm 20, isadapted to move and to engage the opposite vertical walls of the recess. The end 28 of the vibrating member 17 is provided with two cam-surfaces 29 and 30, between which is located a straight or non-cam surface 31. Pivotally supported at its outer end at the point'32 by the lug 18 is a lever 33, and this lever when it is moved in the direction indicated by arrow in Fig. 3 engages first the cam 29, passes over the smooth or straight portion 31, and then engages the second cam 30. The inner end of the lever 33 extends inward in the line traveled by the paper-guides 15, and the inner end of the lever 33 is bent upward, as shown .at 34:, for the purpose of providing an elongated vertical engaging surface between the paper-guide and the lever, whereby the said two members will engage when the platenframe is lifted or shifted vertically for striking caps or the upper-case characters. The paper-guide 15, located at the right-hand side of the machine, is provided with a projecting member 35, which when the carriage moves strikes the end 34 of the lever 33 and moves the lever to engage the said cams 29 and 30. The object of this extension will be presently stated.

The bell-ringing mechanism consists of an intermediately-pivoted clapper-arm 36, carrying the clapper at its inner end and having at its outer end a recess 37 and a drop-off shoulder 38. Carried by the lower end of the arm 20 is a pivoted dog 39, which is held against movement in one direction through the medium of a stop e0, but is permitted to swing freely in the opposite direction, as indicated in Fig. 7. A suitable spring 4:1 serves to normaily hold the clapper slightly out of contact with the bell 42, as shown in full I lines ,-Fig. 7. I When the arm 20 is moved in' the direction indicated by arrow,';Fig. 2, it engages the inclined portion of the recess 37 ..aiid',depresses the outer end of the clapper arm 36 until it reaches the drop-ofl" shoulder 38, when the clapper-lever 36 is permitted to drop and overcome the slight tension'of the spring-.41 and strike the bell 42, giving an .portionof the platen. The operation of the printing mechanism causes the carriageto travel'in the direction indicated by arrow in Fig) 1.' ,The movement of the carriage causes the projection 85 to engage the inner end of the lever 33' and move it in the direction indicated by arrow in Fig 3. I The movement of the lever engages first the cam 29 of the vibrating Inember 17, which. moves the'arm 20 in the direction indicated'by arrow inFig. 2 suflic iently far to cause the pivoted dog 39 to travel up the inclined surface of 'the recess 37, formed-inthe clapper 36, until it reaches the drop oif shoulder" 38. This movement lifts the inner end of the clapper-lever 36 and permits it to drop, sounding an "alarm by strikingthe bell 42. The continued movement ofthe carriage moves the lever 33 over the straight portion 31 of the vibrating member 17 and in engagement with the second cam' 30. The second cam causes a'furtherdepression of the vibrating member 17 and a further outwardmovement of the arm 20 andsufiicientl'y far to cause the pin 27 to engage the outer vertical Wall of the recess 26 and move the rod 21 under the hooks 23 f the key-levers 24 and locks the key-levers against fur 'ther operation and also stops the movement of the carriage. 'From thisdescription it will be observed that the bell-alarm is sounded several spacesin advance of the locking action for the purpose of warning the operator and permitting proper division ofthe word he may be writing or to indicate that there is a certain number of spaces before the end: of the line. is reached. When the locking action takes effect, and thereforethe end of the line is determined, thei pointer of the paperguides at the right-hand side of the machine will have reached the point or numeral on the scale to which the operator had previously adjusted it. The adjustment of the paperguide at the leftliand side of the machine will determine the'pointon the platen at which the-line of writing shall begin by the paperguidc engaging the inner end of the lever 33,

.. and thusstopping the movement of the ear ri'age as it is'being drawn across the machine by the operator for the beginning of 'a line cf writing. The movementof the lever 33 in portion of the machine-frame.

'both' directions is limited bygmean's of suitable pins or projections 45, extending from a As the inner end of the lever 33 travels a considerable distance, (comparatively speaking) the projec-' tion 35 on the paper-guides is provided to cause a movement of the lever in advance of the paper-guides and to cause the lever to be moved sufliciently far to effect the locking of 'the key-levers by the time the paper-guide has reached the pointto which it hasbeen adjusted to determine writing.

By reference to Fig. 2 it will be observed that the papeflguide-supporting rod 4 is located at ajpoint so that the outer ends of the type-bars 46 will pass freely by the socket portions of the paper-guides, as well as being located sufficiently far from the platen toprevent thebar from interfering with the visible writing of the machine' of vision is indicated in Fig. 2 by'thedotted line 47 and the printing-point is indicated by the reference-numeral'48,and by locating the said bar 4 at a point between the line of vision and the line of travel of the outerends of, the

type-bars I am enabled to extend this bar any desired distance longitudinal the frame, (pref-' erably the whole length of the platen,) and thus permit the paper-guides to be adjusted across the normal writing-line of the machine and without interfering with the line of vision.

1 Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a type-wri-ter'having'a line-locking mechanism, an actuating member therefor located adjacent the carriage, a vertically movable platen, a. paper guide longitudinally adjustable in relation to the platen and vertically movable. therewith, .,the

said actuating member'located in the line of travel of the paper-guid'ea'the paper-guides and actuating member havingvertically-elongated engaging surfaces, for the purposedescribed I 2. The combination with a typewriter having a line-locking mechaiiism, of an actuating member therefor, a paper-guide movable longitudinal the platen, a verticallymovable platen'operatively connected with the paper- The lowest line guide, the actuating member and paper-guides so constructed that they will engage when the platen is in either its elevated or lowered position.

3. The combination with'a type-writer'having an end-line alar-m,and a line-locking mechanism, of a vertically-shifting platen, a paperguide shifted with the platen and movable longitudinal the platen, and an operating mechanism between the alarm, the line-locking mechanism, and the adjustable paper-guide so constructed as to operate when the platen is in its upper and lower positions.

.4. Ina front-strike type-writer, the comthe length of the line of bination of aplaten, type-bars arranged upon fixed pivots therebelow and adapted to swing upward, a line-locking mechanism, an act-uating member for the line-locking mechanism located between the line of vision and the path I traveled by the type-bars, apaper-guide-supporting member also located at a point between the line of vision and the line'of travcL of. the outer ends of the type-bars, and an ad justable paper-guide carried by the said supporting member and adapted to operate the said actuating member.

able along the platen, said rod being in front of the platen, above thepaths of the typebars and below the line of vision, a carriage alarmmechanism, and a part upon said paperguide and ad ustable therewith, for operating said alarm mechanism.

6. In a type-writing machine,the combination witha platen and type-bars mounted to strike rearwardly against the front of the platen, of a front paper-guide for the platen,

a rod upon which said paper-guide is adjustable along the platen, said rod being in front of the platen, above the paths of the typebars and below the line of vision, and a carriage alarm and line-locking mechanism ineluding a member in the path of a part upon said paper-guide.

7 In a type-writing machine,the combination with a platen and type-bars mounted to strike rearwardly against the front of the platen, of a rod extending longitudinally of the platen in front thereof above the paths of the type-bars and 'below the line ofvision, an arm extending rearwardly from said rod and adjustable-therealong. and carrying at its rear end a yielding paper-guiding finger in front of the platen, and a carriage alarm mechanism including apart in the path of a part of said arm.

8. In a type-writing machine,the combination with a platen and type-bars mounted to strike rearwardly against the front of the platen, of a rod extending longitudinally of the platen in front thereof above the paths of the type-bars and below the'line of vision, a

clip upon said rod and adjustable therealong, means for securing said clip firmly where adjusted, paper-guiding means extending rearwardly from said clip to the front of the platen, and carriage alarm and line-locking mechanism having a member in the path of a part upon said clip.

9. In a type-writing machine,the combination with a platen and type-bars mounted to strike rearwardly against the front of the platen, of a rack extending longitudinally of the platen in front thereof above the paths of the type-bars and below the line of vision, a

front paper-guide for'the platen, said paperguide being supported upon said rack and adjustable therealong and having a tooth to engage said rack, and a line-locking mechanism having a member in the path of a part upon said paper-guide. 1

10. In a type-writing machine, the combination with a platen and type-bars mounted to strike against the'front of the platen,of a front .paper-guide for the platen, a rod upon which said paper-guide is adjustable along the platen, said rod beingin front of the platen, above the paths of the type-bars and below the lineof vision,acarriage alarm mechanism having a member in the path of a part upon said paper-guide, an index upon said paperguide, and a scale.

11. In a type-writing machine, the combination with a platen and carriage, of type-bars mounted to strike against the front of the platen, a front paper-guide for the platen, a rod upon the carriage for supporting said paper-guide, the latter being adjustable upon said rod along the platen, and said rod being in front of the platen, above the paths of the type-bars and below the line of vision, a carriage alarm mechanism having a member in the path of a part upon said paper-guide, a fixed scale, an index upon said carriage adapted to cooperate with said scale, and an index upon said-paper-guide also adapted to cooperate with said scale.

12. In a type-writing machine, the combination with a platen and type-bars mounted to strike against the front of the platen, of a front paper-guide for the platen, a rod upon which said paper-guide is adjustable along the platen, said rod being in front of the platen, above the paths of the type-bars and below the line of vision, and a carriage alarm and line-locking mechanism inclusive of a lever in the path of a part upon said paper-guide, and earns operable by said lever; one of said cams for ringing the alarm, and the other for locking the line.

13. In a type-writing machine, the combination with a platen and type-bars mounted to strike against the front of the platen, of a front paper-guide for the platen, a rod upon which said paper-guide is adjustable along the platen, said rod being in front of the platen, above, the paths. of the type-bars and below the line of vision, a lever in the path of a part upon said paper-guide, a vibrating member having two cams engageable in succession by a part upon said lever, and bell-ringing and line- I looking devices operable by said vibrating member.

14. In a type-writing machine, the combination with a platen and type-bars mounted to strike against the front of the platen, of a pair of front paper-guides for the platen, a rod upon which said paper guides are independently adjustable along the platen, said rod being in front of the platen, above the paths 55 being mounted upon said carriage in front of- I of the type-bars and-below'the line of vision,

a carriage upon= which said platen and said rod are mou nted, and carriage-arresting means includinga member between said paper-guides paper-guides are independently adjustable and in. the path of'a part upon each thereof,

for arresting the movements of the carriage.

in both directions at-points determined by the adjustment of said paper-guides. v

15.. In a type-writing machine, the combination with a platen and type-bars mounted to' strike against the front of the platen, of a carriage for said platen, a pair of front paperguides for theplaten, a rod upon which said along the platen, said rod being in front of the platen, above the paths of the type-bars and below the line. of vision, and means be,

tween said paper-guides and movable by one .Ithereof for ringing. an alarm and locking the line, and engageable by the other thereoffor arresting the carriage in itsreturn movement.

- 16;- In a type-writing machine, the combination with a platen and type-barsmounted to strike against the front of the; platen, of a carriage for said platen, a pair of front paperguides for the platen, a rack upon which said paperguides are independently adjustable along the platen, each guide having a tooth to engage. said rack, and thelatter being mounted 'uponjthe' carriage in front ofthe' platen, above the paths of the type-bars-and below the line of vision, and means for enabling one of said guides to ring an alarm 7 paper-guides are independently adjustable;

and lock the line and the other of said guides to limit the returnmovement'of the carriage.

17-.- In a type-writing machine, the cor'nbination with a platen and type-bars mounted to strike against the front of the platen, of, a carriage for said platen, a pair of frontpaperguides for said platen, a 'rod upon which said.

along the platen, said rod being mounted upon said carriage in front of the platen, above the paths of the type-bars and below the line of vision, means for enabling one of said guides to ring an alarm and-the other thereof to limit the return movement of the carriage, a scale, and indexes upon said guides to cooperat with said scale.

18. In a ype-writing machine, the combination with'a platen and type-bars-mounted to strike against the front of the platen, of a carriage for said platen, a front paper-guide fort-he platen, a rod upon which s'aid paperguide is adjustable along the-platen, said rod the platen, above the. paths of'the type-bars and belowtl'ie'line of vision, and a device in the path of a part of said paper-guide, for

cooperating therewith to arrest the movement of the carriage.

19. In a type-writing machine, thecombination with a carriage and a platen connected thereto and shiftable up and down, of typebars mounted to strike against the front of the platen, a front paper-guide for the, platen,

a rod upon-which said paper-guide is adjust able along the platen, said rod beingfconnected to shift with the platen, and a carriage alarm mechanism mounted upon the framework of the-machine and operable by a part upon said paper-guide at either shift position of .the platen.-

. 20. In a type-writing machine, the combi: nation with a platen and a carriage, of s a platen-frame shiftable up and down upon said carriage, type-bars mounted to strike against the front of the platen, afront paper-guide for the platen, a rod upon said platen-frame, said paper-guide being-adjustable upon said rod along said platen, and said rod. being.

21. In a type-writing machine, the combi:

nation with aplaten and a carriage, of a plateny frame shiftable up and down upon said carriage, type-bars mounted to strike against the front of the platen, a rod mounted upon said platen-frame in front of the platen, above the 7 paths of the'type-bars' and below the line ofvision, a-front paperguide adjustable upon said'rod along the platen, and a carriage alarm and line-locking mechanism inclusive of a lever having a part in position to be engaged by a part of said paper-guide at either shift I IOO position of said platen-frame.

22. Ina type-writing machine, the combination witha platen and acarriage, ofa platenframe shiftable up and down upon said car riage, type-bars mounted to strike against the front of the platen, a rack mounted-upon said platen-frame in front of the platen, above the paths of the type-bars and below the line of vision, a front paper-guide..,adjhstable along saidrack longitudinally of theplaten and having a tooth to engage said rack, and a linelocking mechanism having a part in position to be engaged by a part of said paper-guide at either shift position of said platen-frame.

23. In'a type-writing machine, the combination with a platen and a carriage, of a platenframe sh'iftable up and down upon said.ca-r- 'riage, type-bars mounted to strike agaihst'the front of the platen, a pair of paper-guides for the front of said platen, saidguides being independently adjustable upon said platen frame along said platen, and carriage-arrest.

ing means between said paper-guides and engageable by-either. thereof, for'arresting the opposite movements of the carriage,at either shift position of saidplaten-frame.-

24. In a type-writing machine,-the combination with a platen and a carriage, of a platenframe shiftable up'anddown upon said carg reuse riage, type-bars mounted to strike against the said guides to limit the return movement of 0 front of the platen, a rod mounted upon said the carriage.

platen-frame in front of the platen, above the In testimony whereof I have hereunto set paths of the type-bars and below the line of my hand in the presence of two subscribing vision, a pair of front paper-guides independwitnesses. ently adjustable along said rod, andmeans effective at either shift position of the platen- Witnesses: frame, for enabling one of said guides to ring A S. PATTISON,

JAMES D. DAUGHERTY.

an alarm and lock the line and the other of L. M. GOTWALD. 

